Casio FX-82AU PLUS Manuale Utente
20
Fractions and Decimals
Remember!
When you have a fraction or a decimal displayed on the screen pressing the n button
will allow you to toggle between decimal and fractional representation. Pressing SHIFT
n will toggle between an improper fraction and mixed numeral representation for
expressions with a value greater than 1. Instructions for entering fractions in MathIO and
LineIO are on pages 6 and 7.
When you have a fraction or a decimal displayed on the screen pressing the n button
will allow you to toggle between decimal and fractional representation. Pressing SHIFT
n will toggle between an improper fraction and mixed numeral representation for
expressions with a value greater than 1. Instructions for entering fractions in MathIO and
LineIO are on pages 6 and 7.
Practice your skills with the following questions.
1. Express
3
4
4
1 as a decimal.
2. Express
7
8
8
2 as an improper fraction.
3. Change 0.135 to a fraction.
4. Write 2.65 as an improper fraction.
5. What is
11
5
as a mixed numeral?
6. Enter 5% into your calculator by pressing 5 SHIFT(
. Press p and n to
express 5% as a decimal and as a fraction.
7. Express 36% as a fraction.
8. What is 8% as a decimal?
9. What number is equivalent to 125%?
10. Express 45% as a fraction.
11. Write 8.5% as a decimal.
12. What decimal is equivalent to
3
8
8
?
13. What improper fraction is equivalent to
2
5
5
4 ?
14. Express
8
12
as a fraction in its simplest form. (Enter the fraction then press p.)
15. Express
85
25
as a mixed numeral expressed in simplest form.
Answers
1 1.75
2
23
8
3
27
200
4
53
20
5
1
5
5
2
6 0.05,
1
20
7
9
25
8 0.08
9 1.25
10
9
20
11 0.085 12 0.375 13
22
5
14
2
3
15
17
5
© Sue Thomson and Shriro Australia PTY Limited. This page may be photocopied for classroom use.